16044746015889 has 24 divisors (see below), whose sum is σ = 23200557293160. Its totient is φ = 10685046210048.

The previous prime is 16044746015867. The next prime is 16044746015923. The reversal of 16044746015889 is 98851064744061.

16044746015889 is a `hidden beast` number, since 1 + 6 + 0 + 4 + 4 + 7 + 46 + 0 + 1 + 588 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 179024400 + 16044566991489 = 13380^2 + 4005567^2 .

It is not a de Polignac number, because 16044746015889 - 2¹⁹ = 16044745491601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16044746015819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339641179 + ... + 339688415.

It is an arithmetic number, because the mean of its divisors is an integer number (966689887215).

Almost surely, 2^{16044746015889} is an apocalyptic number.

It is an amenable number.

16044746015889 is a deficient number, since it is larger than the sum of its proper divisors (7155811277271).

16044746015889 is a wasteful number, since it uses less digits than its factorization.

16044746015889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86849 (or 86846 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 63.

The spelling of 16044746015889 in words is "sixteen trillion, forty-four billion, seven hundred forty-six million, fifteen thousand, eight hundred eighty-nine".